What are some of the significant criticisms of the Rorschach test?

The Rorschach is what is known as a projective psychological test, and is designed to reveal information about an individual's personality and unconscious thoughts or emotions. While some psychologists still use the Rorschach, many others are skeptical of its utility, primarily because it is based on unsupported theory. In order for a test to be considered reliable and valid, it must be derived from empirically supported evidence. Because the Rorschach is a subjective test, no two psychologists will score it in the exact same manner, and this means that the results are far more difficult to verify. While it can provide unique insight into an individual's personality, psychologists typically only use it as a supplement to more empirically sound testing.